This section provides an overview of the ASR1K Target of Evaluation (TOE). This section also defines the TOE components included in the evaluated configuration of the TOE. The Cisco Aggregation Services Router 1004 (herein after referred to as the ASR1K) is a purpose-built, routing platform. It performs analysis of incoming frames, makes forwarding decisions based on information contained in the frames, and forwards the frames toward the destination. It supports routing of traffic based on tables identifying available routes, conditions, distance, and costs to determine the best route for a given packet.
\r\n\r\n
The ASR1K hardware models are included in the evaluation and consists of a number of components including:
\r\n\r\n
· Chassis: The ASR1004 chassis is a 4-RU form factor. The chassis is the component of the TOE in which all other TOE components are housed.
\r\n· Embedded Services Processor (ESP): The ASR1000-ESP20 and the ASR1000-ESP40 are responsible for the data-plane processing tasks, and all network traffic flows through them.
\r\n· Route Processor (RP): The ASR100-RP2 provides the advanced routing capabilities of the TOE. The RP also monitors and manages the other components in the ASR1K.
\r\n· Shared Port Adaptors (SPA): Used for connecting to networks. These SPAs interface with the TOE to provide the network interfaces that will be used to communicate on the network.
","evaluation_configuration":"","security_evaluation_summary":"\r\n\r\nThe evaluation was carried out in accordance with the Common Criteria Evaluation and Validation Scheme (CCEVS) process and scheme. The criteria against which the Cisco Aggregation Services Router 1004 (ASR1K) was evaluated are described in the Common Criteria for Information Technology Security Evaluation, Version 3.1 rev 4. The evaluation methodology used by the evaluation team to conduct the evaluation is the Common Methodology for Information Technology Security Evaluation, Version 3.1 rev 4. The product, when delivered configured as identified in the Cisco Aggregation Services Router 1000 Series (ASR1K) CC Configuration Guide, satisfies all of the security functional requirements stated in the Cisco Aggregation Services Router 1004 (ASR1K) Security Target. The project underwent CCEVS Validator review. The evaluation was completed in May 2019. Results of the evaluation can be found in the Common Criteria Evaluation and Validation Scheme Validation Report prepared by CCEVS.
","environmental_strengths":"\r\n\r\nThe TOE is comprised of several security features. These features are described below.
\r\nSecurity Audit
\r\nThe TOE provides extensive auditing capabilities. The TOE can audit events related to cryptographic functionality, identification and authentication, and administrative actions. The TOE generates an audit record for each auditable event. Each security relevant audit event has the date, timestamp, event description, and subject identity. The administrator configures auditable events, performs back-up operations and manages audit data storage. The TOE provides the administrator with a circular audit trail or a configurable audit trail threshold to track the storage capacity of the audit trail. Audit logs are backed up over an encrypted channel to an external audit server.
\r\nCryptographic Support
\r\nThe TOE provides cryptography in support of other TOE security functionality. All the algorithms claimed have CAVP certificates (Operation Environment - Intel Xeon 5200).
\r\nThe TOE provides cryptography in support of VPN connections and remote administrative management via SSHv2 and IPsec to secure the transmission of audit records to the remote syslog server. In addition, IPsec is used to secure the session between the TOE and the authentication servers.
\r\nIdentification and authentication
\r\nThe TOE performs two types of authentication: device-level authentication of the remote device (VPN peers) and user authentication for the Authorized Administrator of the TOE. Device-level authentication allows the TOE to establish a secure channel with a trusted peer. The secure channel is established only after each device authenticates the other. Device-level authentication is performed via IKE/IPsec mutual authentication. The TOE supports use of IKEv1 (ISAKMP) and IKEv2 pre-shared keys for authentication of IPsec tunnels. The IKE phase authentication for the IPsec communication channel between the TOE and authentication server and between the TOE and syslog server is considered part of the Identification and Authentication security functionality of the TOE.
\r\nThe TOE provides authentication services for administrative users to connect to the TOE’s secure CLI administrator interface. The TOE requires Authorized Administrators to authenticate prior to being granted access to any of the management functionality. The TOE can be configured to require a minimum password length of 15 characters. The TOE provides administrator authentication against a local user database. Password-based authentication can be performed on the serial console or SSH interfaces. The SSHv2 interface also supports authentication using SSH keys. The TOE supports the use of a RADIUS AAA server (part of the IT Environment) for authentication of administrative users attempting to connect to the TOE’s CLI.
\r\nThe TOE provides an automatic lockout when a user attempts to authenticate and enters invalid information. After a defined number of authentication attempts fail exceeding the configured allowable attempts, the user is locked out until an authorized administrator can enable the user account.
\r\nThe TOE uses X.509v3 certificates as defined by RFC 5280 to support authentication for IPsec connections.
\r\nSecurity Management
\r\nThe TOE provides secure administrative services for management of general TOE configuration and the security functionality provided by the TOE. All TOE administration occurs either through a secure SSHv2 session or via a local console connection. The TOE provides the ability to securely manage:
\r\nThe TOE supports two separate administrator roles: non-privileged administrator and privileged administrator. Only the privileged administrator can perform the above security relevant management functions. Management of the TSF data is restricted to Security Administrators. The ability to enable, disable, determine and modify the behavior of all of the security functions of the TOE is restricted to authorized administrators.
\r\nAdministrators can create configurable login banners to be displayed at time of login and can also define an inactivity timeout for each admin interface to terminate sessions after a set period of inactivity.
\r\nProtection of the TSF
\r\nThe TOE protects against interference and tampering by untrusted subjects by implementing identification, authentication, and access controls to limit configuration to Authorized Administrators. The TOE prevents reading of cryptographic keys and passwords.
\r\nAdditionally, Cisco IOS-XE is not a general-purpose operating system and access to Cisco IOS-XE memory space is restricted to only Cisco IOS-XE functions.
\r\nThe TOE internally maintains the date and time. This date and time is used as the timestamp that is applied to audit records generated by the TOE. Administrators can update the TOE’s clock manually. Finally, the TOE performs testing to verify correct operation of the router itself and that of the cryptographic module.
\r\nThe TOE is able to verify any software updates prior to the software updates being installed on the TOE to avoid the installation of unauthorized software.
\r\nWhenever a failure occurs within the TOE that results in the TOE ceasing operation, the TOE securely disables its interfaces to prevent the unintentional flow of any information to or from the TOE and reloads.
\r\nTOE Access
\r\nThe TOE can terminate inactive sessions after an Authorized Administrator configurable time-period. Once a session has been terminated the TOE requires the user to re-authenticate to establish a new session. Sessions can also be terminated if an Authorized Administrator enters the “exit” command.
\r\nThe TOE can also display a Security Administrator specified banner on the CLI management interface prior to allowing any administrative access to the TOE.
\r\nTrusted path/Channels
\r\nThe TOE allows trusted paths to be established to itself from remote administrators over SSHv2 and initiates outbound IPsec tunnels to transmit audit messages to remote syslog servers. In addition, IPsec is used to secure the session between the TOE and the authentication servers. The TOE can also establish trusted paths of peer-to-peer IPsec sessions. The peer-to-peer IPsec sessions can be used for securing the communications between the TOE and authentication server/syslog server.
","features":[]}